Except in many cases its not persuasion. Joining groups actually does give us these things. My gf is part of “bay area moms” group and the amount of useful tips she gets out of participating in that is significant. Or “bay area hikers” for me. Also, if i want to sell something, I hire facebook to find a buyer for my old ipad or iphone.
Social media has caught on to the jobs framework. Jack Dorsey references it directly on Twitter earnings calls. He says we need to fill more jobs for more people. He constantly asks what can people hire twitter for?
I think to reduce social media to some of the crappy jobs it does serve artificially diminishes what it can be.